Wideband mm-Wave CMOS Slow Wave Coupler

In this letter, we have presented a design of on-chip millimeter-wave 3-dB quadrature coupler that utilizes the coupled slow wave coplanar waveguide. The designed CMOS coupler covers the whole E- and W-band and occupies a silicon area of only 0.0115 mm 2 , which is significantly smaller compared to the conventional microstrip-line-based Lange couplers. Measurement of the quadrature coupler shows a -3.5 dB through and a -4.4-dB coupling at 90 GHz. A less than ±1-dB amplitude and a ±4° phase errors from 55 to 110 GHz are recorded.

Keywords

3 dB, CMOS, coupled line, coupled slow wave coplanar waveguide (CS-CPW), coupler, E-band, Lange coupler, millimeter-wave (mm-wave), quadrature, SiGe, slow wave, W-band

DOI

10.1109/LMWC.2019.2892845

Citation

Parveg, D, Varonen, M, Karaca, D & Halonen, K 2019, ' Wideband mm-Wave CMOS Slow Wave Coupler ', IEEE Microwave and Wireless Components Letters, vol. 29, no. 3, 8627920, pp. 210-212 . https://doi.org/10.1109/LMWC.2019.2892845

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-201905062877

Collections

[article-cris] Sähkötekniikan korkeakoulu / ELEC

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